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Finding the Fourth Proportional to 507,839.80, 761,885.64 and 358,372.12

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Solution

The fourth proportional to 507,839.80, 761,885.64 and 358,372.12 is: 537,647.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,839.80 : 761,885.64 = 358,372.12 : x
  2. Step 2: Convert to fraction form
    507,839.80/761,885.64 = 358,372.12/x
  3. Step 3: Cross multiply
    507,839.80x = 761,885.64 × 358,372.12
  4. Step 4: Simplify right side
    507,839.80x = 273,038,572,004.36
  5. Step 5: Solve for x
    x = 273,038,572,004.36/507,839.80
  6. Step 6: Final answer
    x = 537,647.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.